The above Royal Mail Penny Black: Miniature Sheet stamps were issued on 03 May 1990 by Royal Mail and feature the following stamp designs:
20p Penny Black Anniversary stamp plus Royal Mail reprint of the 1840 Penny Black. The Stamp Centenary Exhibition first day cover with the
London SE, MB Clarke Penny Black,
Special Handstamp
postmark
has been produced by Benham
and features these stamps which can make a very collectible and lovely gift.